Porous α-Fe2O3 nanoparticles encapsulated within reduced graphene oxide as superior anode for lithium-ion battery
Publication in refereed journal

香港中文大學研究人員

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摘要A facile route for the controllable synthesis of porous α-Fe2O3 supported by three-dimensional reduced graphene oxide (rGO) is presented. The synergistic effect between α-Fe2O3 and rGO can increase the electrolyte infiltration and improve lithium ion diffusion as well. Moreover, the combination of rGO nanosheets can increase the available surface area to provide more active sites and prevent α-Fe2O3 nanoparticles from agglomeration during the cycling process to ensure its long-term cycle performance. Consequently, the α-Fe2O3/rGO nanocomposites exhibit higher reversible specific capacity (1418.2 mAh g(-1) at 0.1 A g(-1)), better rate capability (kept 804.5 mAh g(-1) at 5.0 A g(-1)) and cycling stability than the α-Fe2O3 nanoparticles. Owing to the superior electrochemical performance, the α-Fe2O3/rGO nanocomposites might have a great potential as anode for lithium-ion batteries.
著者Zhang XY, Li SY, El-Khodary SA, Zou BB, Yang SL, Ng DHL, Liu XH, Lian JB, Li HM
期刊名稱Nanotechnology
出版年份2020
月份4
卷號31
期次14
出版社IOP Publishing
文章號碼145404
國際標準期刊號0957-4484
電子國際標準期刊號1361-6528
語言英式英語
關鍵詞lithium-ion batteries, anode, iron oxide, reduced graphene oxide, nanocomposite, porous structure
Web of Science 學科類別Nanoscience & Nanotechnology;Materials Science, Multidisciplinary;Physics, Applied;Science & Technology - Other Topics;Materials Science;Physics

上次更新時間 2021-21-01 於 00:29